Concrete building slab or block.



M. MOORE. CONCRETE BUILDING SLAB 0R BLOCK.. APPLICATION FILED MAY 31. ISIS.

PatenIgd Aug. 7, 1917 MIERRILL TiIOORLE,

CItEEiTiDII, IO'WA CONGItETE BUItliil'tllii' it ELAB 0R BLOCK.

nascent,

Specification of Letters Patent.

E a-tented it.

Application filed May 3'1, 1916. Serial No. lfiflfidel.

To all uihom it may concern:

Be it known that I, MERRILL Moons, a citizen of the United States, residing at Creston, in the county of Union and State of Iowa, have invented certain new and useful Improvements in Concrete Building Slabs or Blocks, of which the following is a specification.

This invention relates to a concrete slab or block to be used in the construction of walls for buildings. v

The mainobject of my invention is to so construct a slab or block, that it may be easily, readily and securely fastened to the next adjoining slab during the process of constructing the walls of abuilding.

Another object of the invention is to provide a building slab or block having a plu- -ality of metal reinforcing rods or bars em-l bedded therein in an inclined position, each rod or bar being provided with an eye or loop; at each end thereof.

extended portion of the slab at a point about one-fourth the distance from each end thereof, adapted to receive a fastening or tying bolt or pin used for securing the slabs together.

.The foregoing and such other objects as may appear from the ensuing description are attained by the novel features of construction, hereinafter more fully described, illustrated in the accompanying drawings,

and particularly pointed out in the claim appended hereto, it being understood that s ight changes in the form, proportions, and minor details of the construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings it will be seen that:

Figure 1, is a perspective view of my im proved concrete building slab or block showing by dotted lines the metal reinforcing rods embedded therein.

Fig. 2, is an end View of the er w.

Fig. 3, is a transverse sectional, on'the line ma2, l ig. 2, showing th reinforcing rods in full lines and 'ing pins in cross-section.

Fig. l, is a longitudinal sectionr-il taken on the line g i/, Fig. 1.

Fig. 5, is a plan vie showing metal reinforcing rods removed from the slab or block, and.

Fig. 6, is a perspective view showing a portion of a building will constructed by the use of my improved slab or bldck, and showing reinforcing rods and fastening bolts or pins in dotted lines.

In carrying out the invention as illustrated, and which shows a preferred con.- struction, the numeral 1 designates my improved slab or.block molded of concrete or other suitable and desirable material, provided at each side thereof with a lateral extension 2 of about one-half the thickness of the body portion 3 bedded crosswise within each slab are two metal reinforcing rods 4, each rod being po-= sitioned at an incline across the slab and provided with an integral eye or loop 5, at each'end thereof, and each end terminating within a lateral extension 2, at a point about one-fourth the distance from each end of the block, at which point a hole 6 is formed in the block extending therethrough and through the eye or loop of each of the reinforcing rods, said holes 6, being adapted to receive fastening bolts or pins which passed through the holes in one slab, through the eye or loop of the reinforcing rods, and into the registering holes of the next adjacent slab connected thereto, so as to securely fasten and tie the building slabs or blocks together in the construction of walls for buildings.

It will be perceived that the rods d, not only serve as a reinforcing medium for the concrete slab or building block, but the eye or loop 5 formed at each end of each rod, constitutes a strong and solid contact with the fastening bolts or pins 7, and the inclined position of each rod 4 crosswise of the slab permits each end .of a rod to terminate within one of the lateral extensions and there receive a fastening pin for the purpose hcreinbefore described. will be seen that the eye or loop 5 at each end of the solid reinforcing rods'fornis a solid metalbearing surface for each of the view of said slab, and em- Further, it

of the metal fasteningpins or bolts '2', thereby causing the lateral strains to which the itastening pins are subject-eat to he taken up ancl borne by the said soiitl metal. bearing surfaces thus relieving the poured concrete material -from which the stabs are formed from the necessary lateral strains which Wlil occur in the construction of buildings from slahs or blocks of this type or formation.

lit will undestood that this slab o1 louiltiii'ig block may he utilized in the construction of either square or circular Walls for huihtirms. 0

from its outer face and the other from its inner face, and having a plurality of solid reinforcing rods embedded crosswise within the slab in an inclined position, each rocl being provided with an integral eye or loop at each end thereof terminating Within each of said lateral extensions at the middle portion' thereof and forming metal hearing surfaces; each. of said extensions having apinrality of holes termed therethrough and through each of said eyes or loops at a point about one-fourth the distance from each end of the Slt1l3, m'll a plurality of fastening pins adapted to rest in contact With said metal bearing surfaces and to pass through the openings in said extensions and secure the overlapping extensions of the adjacent sl abs together.

MERRILL MOORE. 

